Trolley



(No Model.) 2 Sheets-Sheet 1,

W. F. DUNGKER.

TROLLBY.

No. 511,763. Patented Jan. 2, 18,94.

(No Model.)

2 Sheets-Sheet 2. W. P. DUNGKER.

TROLLEY."

No. 511,768. Patented Jami. 2,1894.

Nrrnn STATES ATENT @rrrcm TROLLEY.

SPECIFICATION formingpart of Letters Patent No. 51 1,763, dated January2, 1894.

Application filedAngust 26, 1893. Serial No. 484,126. (No model.)

2'70 (0% whom it may concern.-

Be it known that 1, WILLIAM F. DUNCKEB, a citizen of the United States,residing at Steelton, in the county of Dauphin and State ofPennsylvania, have invented a new and useful Trolley, of which thefollowing is a specification.

The invention relates to improvements in trolleys and ice-cleaningattachments.

The object of the present invention is to improve the construction oftrolleys, and to provide one which, should the wire become displacedfrom the center groove or pulley, will return the same to the centergroove or pulley automatically, and which will prevent any liability ofits leaving the wire.

A further object of the invention is to enable the improvements to bereadily applied to the ordinary construction of trolley without anymaterial alteration of the same.

The invention also has for its object to provide an ice-cleaningattachment adapted to be readily applied to the trolley and removedtherefrom, and capable of effectually crushing the ice on a wire and ofremoving the chrushed ice therefrom and of leaving the wire clean andfree of ice for the trolley.

The invention consists in the construction and novel combination andarrangement of parts hereinafter fully described, illustrated in theaccompanying drawings and pointed out in the claims hereto appended.

In the drawings-Figure 1 is a perspective View of a trolley constructedin accordance with this invention, and provided with an ice cleaningattachment. Fig. 2 is a vertical sectional view of the ice-cleaningattachment. Fig. 3 is a detail perspective view of the rocking oroscillating ice-crusher and cleaner.

Fig. 4 is a detail perspective view of the trolley, the ice-cleaningattachment being removed. Fig. 5 is atransverse sectional view of thesame. Fig. 6 is a longitudinal sectional view of the trolley.

Like numerals of reference indicate corresponding parts in all thefigures of the drawings.

1 designates a trolley socket provided at its top with ears 2, betweenwhich is journaled a pulley 3 and at the sides of which arejournaledoutwardly tapering conical bodies 4.

The outwardly extending substantially conical bodies 4, are journaled atopposite sides of the pulley 3, and are provided with spiral grooves 5inclined inward toward the trolley pulley 3, and adapted, should a wireleave the trolley pulley, to receive and conduct the same back to thetrolley pulley, and thereby effectually prevent a trolley from leaving awire. These grooved bodies or sections are capable of being readilyapplied to the ordinary construction of trolley, and do not in anymanner interfere with the construction of the same or require analteration thereof; and'they are provided at their outer ends or apexeswith p i vgt ed disks 6 to form stops to catch the wire to prevent anyliability of the trolley moving laterally too far, and becomingdisengaged from the wire.

The ice-cleaning attachment consists of a frame 7 adapted to bedetachably secured to the trolley socket, and a rocking ice-crusher andcleaner 8, which is journaled between outwardly extending arms 9 of theframe 7.

The rocking ice-crusher and cleaner is provided with front and reartransversely disposed rolls 10 and 1'], which are journaled betweentriangular end pieces 12, and the latter are connected by a transversebar 13, which is interposed between the front and rear rolls. The frontand rear rolls taper from their centers to their ends; the rear one 11is constructed of gum, rubber or other elastic material, and iscorrugated longitudinally; and the front roll 10 is constructed ofsuitablemetal, and is of twice the diameter of the rear roll. Byconstructing the rear elastic roll 11 of less diameter than the frontroll it is caused to drag and partially rotate and operate as a brush tosweep the crushed ice from a Wire. This partial rotation and partialdragging of the elastic corrugated roll effectually removes the ice fromthe wire as fast as the ice is crushed by the front metallic roll.

In order to prevent the ice-cleaning attachment from being brokenthrough contact with some obstruction, and to enable it to readilyconform to the position of the trolley the frame is constructed of twosections let and 15, which are connected at the rear side of the frameby hinges l6, and are held normally in proper position as illustrated inFig. l of the accompanying drawings by one or more spiral springs 17.The lower section is provided at its lower edge with an inclined curvedgroove 18, and has secured to it opposite the groove a detachable clamp19,'\vhich is provided with a recess similar to the groove 18; and thecurved groove 18 and the recess of the clamp form an inclined circularopening to receive the trolley socket.

The ice-cleanin g attachment may be readily removgd by means of adetachable clamp 19.

The ice-cleaning attachment is of the same width of the trolley, and isadapted to conform to the movements of the same, and it is in engagementwith a wire whenever the trolley is in contact with the same.

It will be seen that the trolley and the attachment are simple andcomparatively inexpensive in construction, that the trolley iseffectually prevented from accidentally leaving a wire, and that theice-cleaning attachment is capable of readily removing the ice from thewire. It will also be apparent that the improvements in trolleys may bereadily applied to the ordinary construction of trolleys withoutaltering the construction of the same, and that the ice-cleaningattachment may be readily applied to and removed from the trolley atpleasure.

Changes in the form, proportion and the minor details of constructionmay be resorted to without departing from the principle or sacrificingany of the advantages of this invention.

What I claim isl. The combination of a trolley socket, a pulley mountedtherein, separate outwardly tapering bodies journaled at opposite sidesto the pulley and provided with spiral grooves, and an ice-cleaningattachment comprising a frame and being of substantially the same widthas the trolley and detachably secured to the socket, and a rockingice-crusher and cleaner journaled on the frame and provided with rolls,substantially as described.

2. A trolley having a pulley and provided at opposite sides of the samewith separate outwardly tapering conical bodies provided with spiralgrooves, substantially as described.

3. A trolley having a pulley and provided at opposite sides of the samewith outwardly tapering spirally grooved journaled bodies and havingdisks secured to the outer ends of the same, substantially as described.

4. An ice-cleaning attachment for trolleys comprising a frame or supportdesigned to be detachably secu red to a trolley, an oscillating framejournaled on the said frame or support and provided with transverselydisposed rolls adapted to engage a wire, substantially as de scribed.

-5. The combination with a trolley having a pulley, of an upwardlyextending frame mounted on the trolley and arranged in advance of thepulley, and aroller journaled 011 the frame and adapted to engage awire, substantially as described.

6. The combination with a trolley having a pulley, of anice-cleaningattachment, comprising a frame or support mounted on thetrolley in advance of the'pulley thereof, and front and rear rollstapering from their centers to their ends and arranged parallel witheach other and adapted to engage a wire, substantially as described.

7. The combination with a trolley having a pulley, of an ice-cleaningattachment comprising a' frame or support mounted on the trolley inadvance of the pulley thereof, and

a pair of parallel rolls of different diameters v journaled transverselyof the frame .orsupport and adapted to engage a wire, substantially asdescribed.

8. An ice-cleaning attachment comprising a frame or support and a pairof rolls journaled on the frame or support and tapering from theircenters to their ends and being of different diameters, the rear rollbeing the smaller, substantially as described.

9. An ice-cleaning attachment for trolleys comprising a frame or supportand a pair of transversely disposed rolls of dilferent .diameters, thefront one being constructed of metal, and the rear one being constructedof elastic material, substantially as described.

10. An ice-cleanin g attachment for trolleys comprising a frame orsupport, and the transversely disposed rolls of different diameters, therear roll being the smallerandconstructed of elastic material and beingcorrugated substantially as described.

11. The combination with a trolley having a pulley, of anice-eleaningattachment comprising a main frame or support mounted on thetrolley in advance of the pulley and provided with outwardly extendingarms, ,a rocking frame journaled between the ,arms, and rolls mounted onthe rocking frame and adapted to engage a wire, substantially asdescribed.

12. An attachment for trolleys comprising a main frame or supportprovided with outwardly extending arms, ,an oscillating frame having endpieces pivoted tosaid arms and provided with a connectingbar secured tothe end pieces, and rolls arranged on opposite sides of the connectingpiece and journaled on the end pieces, substantiallyas described.

13. An ice-cleaning attachment for trolleys comprising a main framecomposed of .upper and lower sections hinged together, the lower sectionbeing provided with means for ,de-

tachably securing it to a trolley, a spring for holding the sections inoperative positiomand rolls carried by the outer .section, substantiallyas described.

14.. An ice-cleaning attachment for trolleys comprising a main frame orsupport haying upper and lower sections hinged at their. rear faces,theupper section being provided with arms, a spring for holding thesections of the main frame or support in operative position, anoscillating or rocking frame journaled between said arms, and rollscarried by the oscillating or rocking frame, substantially as described.

In testimony that I claim the foregoing as my own I have hereto afiixedmy signature in the presence of two witnesses.

WILLIAM F. DUN OKER.

Witnesses:

HORACE G. PIERSON, ARTHUR B. SEIBOLD.

